Remove non-breaking spaces from xml.  This was
fixed separately on master branch.
remove Laitsv3second
Change default database name for stable branch
to laits_stable.  Get db table structures from
master branch.
Merge branch 'master' into stable
This was a big merge, but no substantial conflicts.
Added ivy to the stable branch
Merge branch 'master' into stable
Changes over the week-end by Ram and Reid.
Has first problem.
Merge branch 'master' into stable
Merge branch 'master' into stable
Merge branch 'master' into stable
All the new intro problems are in:  just doing bug testing
and fixes.
Bug 2084 pre-UCLA addressed
Merge branch 'master' of https://github.com/rptiwari/LaitsV3.git